Border Patrol Faces Heat Over Use of Lethal Force on Unarmed Immigrants

On a January night in the Arizona desert, a U.S. Border Patrol agent pursued and killed an illegal immigrant named Gabriel Sanchez.

The border agency said Mr. Sanchez tried to grab the agent's gun, prompting him to shoot. The lawyer representing the victim's family said the circumstances of the shooting remain uncertain. "The only thing we have to speak for the deceased is physical evidence," said Phoenix attorney Daniel...